4. Rotate that by 90 degrees so you're looking at something like a cupboard. Open the left side door of "the cabinet" and fold up the bottom right corner up to the crease of the opened left side.

5. Undo the right triangle you made in step 4 and close up the left side of the cabinet.

6. Then rotate this by 180 degrees and open up the new left side. Then repeat step four by folding up the right hand bottom corner up to the crease of the left door to the cabinet.

7. Now instead of undoing this fold as you did before, you want to simply close up the left door of the cabinet with the right triangle still folded up inside of it.

8. Now this is probable one of the hardest steps in making this type of origami so bear with me :) Start out by lifting up the top right hand corner's "door" as far as it will go without undoing the folds. Then take the whole top left hand corner and tuck it underneath the right top flap. You want to keep pushing it in until it forms a triangle, the same as the one perpendicular to it.

9. Now take the whole shape flip it upside down and proceed to fold the white corners down over the shape for form a parallelogram without any white showing on either side.

10. Fold up the 2 points of the shape to form a square.

11. Lastly you just want to fold the square diagonally in half, along the gap between the two points you folded down in step 10. You may fold them in either direction.

That wasn't to hard now was it? Now all you got to do is go make 11 more of these :D

It may take sum practice with other origami folding before or in my case, an epiphany cuz I'm weird like that. Trying the lazy tertrahedragsomething at http://www.origami-resource-center.com/modular.html is a good place to start :3

I made a 120 (? maybe it was just 90) piece '-hedron' back in the mid 90's. A few years later we moved overseas, and I lost track of it. Now we're back in the ISA and I would sure like to make another one to show my math students! Anyone out there who can help??

WHAT? A 120 UNIT??? i just made one of those, but slightly modified. make rings of 10 units, like ur making a stellated icosahedron. but you push the center down, that makes a star. make 12 of those, and connect those together like a dodecahedron.